Terrorism involving unspecified means, initial encounter

This code signifies an injury or condition resulting directly from an act of terrorism where the specific method or weapon used by the perpetrators is not yet identified or documented. It indicates that the patient is presenting for the first time for treatment of these injuries.

Apply this code when a patient presents with injuries clearly linked to a terrorist act, but the precise means (e.g., bombing, biological agent, shooting) are unknown at the time of the initial encounter. This is appropriate for immediate post-event admissions or emergency department visits where details are still unfolding.

• Always sequence this code as a primary diagnosis when it represents the reason for the encounter.
• Utilize additional codes to specify the nature of the injury (e.g., fracture, burn) and any associated external causes if known.
• This "A" initial encounter seventh character should only be used for the first time the patient is seen for this condition.